Water Usage Calculator
Estimate your monthly water usage and identify opportunities to save water and money.
Flow rate in litres per minute
Litres per week during dry season
Litres lost to evaporation per month
Cost per 1000 litres (cubic metre) - WA average is $2.50
Estimates based on typical usage patterns. Actual water consumption varies based on individual habits, appliance efficiency, and local conditions.
Reduce Your Water Bills
Our hot water specialists can help you choose the most efficient system for your household usage.
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08 7666 2806Understanding Your Hot Water Usage
Hot water accounts for a significant portion of household water consumption in Australia. Understanding your usage patterns helps you choose the right hot water system and identify opportunities for savings.
Average Water Usage in Perth
- Per person average: 150-200 litres per day total
- Hot water portion: 50-70 litres per person daily
- Family of 4: 200-280 litres of hot water daily
Hot Water System Sizing Tips
Your hot water usage directly affects the system size you need:
- 1-2 people: 125-160L storage or small heat pump
- 3-4 people: 250-315L storage or medium heat pump
- 5+ people: 315L+ storage or large heat pump
- Instantaneous: Sized by flow rate (L/min), not storage
Save Water, Save Money
Reducing hot water usage saves both water and energy costs. Consider:
- Installing low-flow showerheads (saves up to 40% water)
- Fixing dripping taps promptly
- Choosing a heat pump system for efficiency
- Scheduling a free hot water assessment
Need Help Choosing the Right System?
Get a free assessment from Perth's hot water specialists. We'll recommend the most efficient system for your household usage.